On Using Residual Voltage to Estimate Electrode Model Parameters for Damage Detection.
On Using Residual Voltage to Estimate Electrode Model Parameters for Damage Detection.
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关于使用残余电压估计电极模型参数以进行损伤检测。
DOI：
10.1109/biocas.2015.7348354
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Kelly,ShawnK
中科院分区：
文献类型：
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作者：
Krishnan,Ashwati;Kelly,ShawnK
当前的技术已经使得用于电刺激的电极数量显着增加。对于大型电极阵列，监测和检测刺激部位的故障变得越来越困难。在本文中，我们提出了这样的想法：双相电刺激脉冲的残余电压可以用于识别电极-组织界面的损伤。我们使用简单的开关电路方法来估计电极模型的弛豫时间常数，该模型本质上模拟了双相电刺激中的残余电压，并将其与标准电极表征技术进行比较。在基于聚酰亚胺的 SIROF 阵列中的 15 个电极中，我们的方法突出显示了 3 个损坏的电极，这与使用循环伏安法和电极阻抗谱进行的测量一致。
Current technology has enabled a significant increase in the number of electrodes for electrical stimulation. For large arrays of electrodes, it becomes increasingly difficult to monitor and detect failures at the stimulation site. In this paper, we propose the idea that the residual voltage from a biphasic electrical stimulation pulse can serve to recognize damage at the electrode-tissue interface. We use a simple switch circuit approach to estimate the relaxation time constant of the electrode model, which essentially models the residual voltage in biphasic electrical stimulation, and compare it with standard electrode characterization techniques. Out of 15 electrodes in a polyimide-based SIROF array, our approach highlights 3 damaged electrodes, consistent with measurements made using cyclic voltammetry and electrode impedance spectroscopy.